Developer ToolsReact

Free HTML to JSX Converter

Convert HTML code into clean React JSX components with className, camelCase attributes, self-closing tags, and style objects.

Tanbir Ahamed·Founder of ToolWise · Software Engineer

Published August 2026

100% Client-Side React Transpiler

Try Presets:

Wrap in React Component

HTML Input

React JSX Output397 chars

<div className="card" style={{ backgroundColor: '#ffffff', borderRadius: '12px', padding: '24px' }}>
  <img src="/avatar.jpg" alt="User Avatar" className="avatar" />
  <h2 className="title" style={{ fontSize: '20px', fontWeight: 'bold' }}>John Doe</h2>
  <p className="subtitle">Full-Stack React Developer</p>
  <button className="btn btn-primary" onclick="alert('Hello!')">Connect</button>
</div>

How to Use

1Paste your HTML code into the input editor or choose one of the sample presets.
2Toggle "Wrap in React Component" if you want a complete functional React component file.
3Click Copy JSX to paste the clean JSX directly into your React / Next.js project.

Features

✓Converts class to className and for to htmlFor automatically
✓Parses inline CSS style strings into React style={{ ... }} objects
✓Automatically self-closes void tags (img, input, br, hr, meta)
✓Converts 20+ SVG attributes to camelCase (strokeWidth, clipRule, fillOpacity)
✓Option to export as a full functional React component
✓100% private and runs entirely client-side in your browser

Comprehensive Guide & Reference

Comprehensive Guide & Reference: Converting HTML to React JSX

JSX is a syntax extension for JavaScript that looks like HTML but enforces strict XML grammar and JavaScript attribute semantics. This guide covers all core transformation rules.

1. Key HTML vs. JSX Syntax Differences

HTML Attribute	JSX Equivalent	Rationale
class="card"	className="card"	`class` is a reserved keyword in JavaScript.
for="email"	htmlFor="email"	`for` is a reserved looping keyword in JavaScript.
<img src="...">	<img src="..." />	JSX enforces XML self-closing tags for all void elements.
style="color: red;"	style={{ color: 'red' }}	Inline styles must be passed as JavaScript objects.
tabindex="0"	tabIndex={0}	All DOM properties follow camelCase in React.

2. SVG Attribute Transformations

SVGs copied from Figma or Illustrator often contain hyphenated XML attributes that will trigger console warnings in React. JSX requires camelCased equivalents:

stroke-width → strokeWidth
stroke-linecap → strokeLinecap
fill-rule → fillRule
clip-path → clipPath

3. Migrating Legacy Templates to Next.js / React

When migrating Bootstrap, Tailwind HTML templates, or Webflow exports to Next.js, always ensure image tags include accessible alt attributes and wrap repeating list elements with stable unique key props.

Real example

Worked example: reserved attributes renamed

Input: HTML: <div class="card" style="margin-top: 8px;"><label for="name">Name</label></div>
Output: →<div className="card" style={{ marginTop: "8px" }}> ↵ <label htmlFor="name">Name</label> ↵ </div> — class→className, for→htmlFor, style string→object

Style becomes a real JS object with camelCase properties (margin-top → marginTop) because JSX compiles to JavaScript, not markup.

Worked example: events and self-closing tags

Input: HTML: <img src="logo.png" onclick="go()">
Output: →<img src="logo.png" onClick={go} /> — onclick camelCased to onClick and the string handler becomes a function reference

In React the handler is passed as a function ({go}), not a string of code, and void elements like img must self-close in JSX.

Privacy & data handling

This tool runs entirely in your browser. What you enter is processed on your own device using JavaScript and WebAssembly — it is not uploaded to our servers, and there is no account, no signup and no per-use limit. Read our privacy policy.

Frequently Asked Questions

Why does React require className instead of class?

In JavaScript and TypeScript, "class" is a reserved language keyword for defining ES6 classes. Since JSX is an extension of JavaScript rather than HTML, React uses className to specify CSS classes without syntax collision.

How are inline CSS styles converted to JSX?

Standard HTML styles like style="background-color: red; font-size: 14px" are parsed into JavaScript object literals with camelCased CSS property names: style={{ backgroundColor: "red", fontSize: "14px" }}.

Why do void tags need a self-closing slash in JSX?

Unlike lenient HTML5 parsers, JSX follows XML syntax rules strictly. All self-closing void elements (such as <img>, <input>, <br>, <hr>, <meta>, <link>) must be explicitly terminated with a trailing slash (e.g., <img src="..." />).

How are SVG attributes handled in JSX?

Hyphenated SVG attributes (such as stroke-width, fill-rule, clip-path, stroke-linecap) are transformed into their camelCase equivalents (strokeWidth, fillRule, clipPath, strokeLinecap) as required by React DOM.

Can I export the converted JSX as a complete React component?

Yes. Check the "Wrap in React Component" option, provide a component name (e.g. HeroCard), and the tool will generate a full export default function ComponentName() file.

Are HTML comments converted to JSX syntax?

Yes. Standard HTML comments  are converted to valid JSX curly-bracket comments {/* Comment */} to prevent syntax errors during React compilation.

Is my proprietary HTML code uploaded to any server?

Never. The entire parser runs locally in your web browser JavaScript execution thread. Zero code or telemetry is transmitted across the network.

How does this tool handle boolean attributes like disabled or checked?

Standalone HTML boolean flags (like <input disabled readonly>) are properly preserved as boolean props in JSX (<input disabled readOnly />).

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Free HTML to JSX Converter

Convert HTML code into clean React JSX components with className, camelCase attributes, self-closing tags, and style objects.

Tanbir Ahamed·Founder of ToolWise · Software Engineer

Published August 2026

100% Client-Side React Transpiler

Try Presets:

Wrap in React Component

HTML Input

React JSX Output397 chars

<div className="card" style={{ backgroundColor: '#ffffff', borderRadius: '12px', padding: '24px' }}>
  <img src="/avatar.jpg" alt="User Avatar" className="avatar" />
  <h2 className="title" style={{ fontSize: '20px', fontWeight: 'bold' }}>John Doe</h2>
  <p className="subtitle">Full-Stack React Developer</p>
  <button className="btn btn-primary" onclick="alert('Hello!')">Connect</button>
</div>

How to Use

1Paste your HTML code into the input editor or choose one of the sample presets.
2Toggle "Wrap in React Component" if you want a complete functional React component file.
3Click Copy JSX to paste the clean JSX directly into your React / Next.js project.

Features

✓Converts class to className and for to htmlFor automatically
✓Parses inline CSS style strings into React style={{ ... }} objects
✓Automatically self-closes void tags (img, input, br, hr, meta)
✓Converts 20+ SVG attributes to camelCase (strokeWidth, clipRule, fillOpacity)
✓Option to export as a full functional React component
✓100% private and runs entirely client-side in your browser

Comprehensive Guide & Reference

Comprehensive Guide & Reference: Converting HTML to React JSX

JSX is a syntax extension for JavaScript that looks like HTML but enforces strict XML grammar and JavaScript attribute semantics. This guide covers all core transformation rules.

1. Key HTML vs. JSX Syntax Differences

HTML Attribute	JSX Equivalent	Rationale
class="card"	className="card"	`class` is a reserved keyword in JavaScript.
for="email"	htmlFor="email"	`for` is a reserved looping keyword in JavaScript.
<img src="...">	<img src="..." />	JSX enforces XML self-closing tags for all void elements.
style="color: red;"	style={{ color: 'red' }}	Inline styles must be passed as JavaScript objects.
tabindex="0"	tabIndex={0}	All DOM properties follow camelCase in React.

2. SVG Attribute Transformations

SVGs copied from Figma or Illustrator often contain hyphenated XML attributes that will trigger console warnings in React. JSX requires camelCased equivalents:

stroke-width → strokeWidth
stroke-linecap → strokeLinecap
fill-rule → fillRule
clip-path → clipPath

3. Migrating Legacy Templates to Next.js / React

Real example

Worked example: reserved attributes renamed

Input: HTML: <div class="card" style="margin-top: 8px;"><label for="name">Name</label></div>
Output: →<div className="card" style={{ marginTop: "8px" }}> ↵ <label htmlFor="name">Name</label> ↵ </div> — class→className, for→htmlFor, style string→object

Style becomes a real JS object with camelCase properties (margin-top → marginTop) because JSX compiles to JavaScript, not markup.

Worked example: events and self-closing tags

Input: HTML: <img src="logo.png" onclick="go()">
Output: →<img src="logo.png" onClick={go} /> — onclick camelCased to onClick and the string handler becomes a function reference

In React the handler is passed as a function ({go}), not a string of code, and void elements like img must self-close in JSX.

Privacy & data handling

Frequently Asked Questions

Why does React require className instead of class?

How are inline CSS styles converted to JSX?

Why do void tags need a self-closing slash in JSX?

How are SVG attributes handled in JSX?

Can I export the converted JSX as a complete React component?

Yes. Check the "Wrap in React Component" option, provide a component name (e.g. HeroCard), and the tool will generate a full export default function ComponentName() file.

Are HTML comments converted to JSX syntax?

Yes. Standard HTML comments  are converted to valid JSX curly-bracket comments {/* Comment */} to prevent syntax errors during React compilation.

Is my proprietary HTML code uploaded to any server?

Never. The entire parser runs locally in your web browser JavaScript execution thread. Zero code or telemetry is transmitted across the network.

How does this tool handle boolean attributes like disabled or checked?

Standalone HTML boolean flags (like <input disabled readonly>) are properly preserved as boolean props in JSX (<input disabled readOnly />).

Free HTML to JSX Converter

How to Use

Features

Comprehensive Guide & Reference: Converting HTML to React JSX

1. Key HTML vs. JSX Syntax Differences

2. SVG Attribute Transformations

3. Migrating Legacy Templates to Next.js / React

Real example

Worked example: reserved attributes renamed

Worked example: events and self-closing tags

Privacy & data handling

Frequently Asked Questions

Related Tools

Related Guides

Free HTML to JSX Converter

How to Use

Features

Comprehensive Guide & Reference: Converting HTML to React JSX

1. Key HTML vs. JSX Syntax Differences

2. SVG Attribute Transformations

3. Migrating Legacy Templates to Next.js / React

Real example

Worked example: reserved attributes renamed

Worked example: events and self-closing tags

Privacy & data handling

Frequently Asked Questions

Related Tools

Related Guides

Free HTML to JSX Converter

Interactive Tool Workspace

How to Use

Features

1. Key HTML vs. JSX Syntax Differences

2. SVG Attribute Transformations

3. Migrating Legacy Templates to Next.js / React

Real example

Worked example: reserved attributes renamed

Worked example: events and self-closing tags

Privacy & data handling

Frequently Asked Questions

Related Tools

Related Guides

Free HTML to JSX Converter

Interactive Tool Workspace

How to Use

Features

1. Key HTML vs. JSX Syntax Differences

2. SVG Attribute Transformations

3. Migrating Legacy Templates to Next.js / React

Real example

Worked example: reserved attributes renamed

Worked example: events and self-closing tags

Privacy & data handling

Frequently Asked Questions

Related Tools

Related Guides